Buckle



FIG. 1 is a right side elevational view of a buckle showing my new design, wherein the left side elevational view is identical;

FIG. 2 is a front elevational view of the buckle of FIG. 1;

FIG. 3 is a rear elevational view of the buckle of FIG. 1;

FIG. 4 is a top plan view of the buckle of FIG. 1;

FIG. 5 is a bottom plan view of the buckle of FIG. 1;

FIG. 6 is a right side elevational view of the buckle of FIG. 1 wherein a cover portion has been moved to the left (compare with FIG. 1) to expose a release button or latch; and,

FIG. 7 is a top plan view of the buckle of FIG. 6 in which the buckle of my new design is engaged with a luggage strap shown in broken outline to indicate an environment in which the buckle may be used. The luggage strap is not claimed as part of my design. 

The ornamental design for a buckle, as shown and described. 